improve comments on OPC_Record to say what we're recording a node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96433 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelMatcherEmitter.cpp b/utils/TableGen/DAGISelMatcherEmitter.cpp
index af75d7d..9b37254 100644
--- a/utils/TableGen/DAGISelMatcherEmitter.cpp
+++ b/utils/TableGen/DAGISelMatcherEmitter.cpp
@@ -126,7 +126,9 @@
     OS.PadToColumn(Indent*2) << "OPC_Emit, /*XXX*/\n\n";
     return 1;
   case MatcherNode::Record:
-    OS << "OPC_Record,\n";
+    OS << "OPC_Record,";
+    OS.PadToColumn(CommentIndent) << "// "
+       << cast<RecordMatcherNode>(N)->getWhatFor() << '\n';
     return 1;
   case MatcherNode::MoveChild:
     OS << "OPC_MoveChild, "